EP 0353041 A2 19900131 - Signal processing apparatus and method using modified signed digit arithmetic.
Title (en)
Signal processing apparatus and method using modified signed digit arithmetic.
Title (de)
Gerät und Verfahren zur Verarbeitung von Signalen mit Hilfe von modifizierter Vorzeichenziffernarithmetik.
Title (fr)
Appareil et procédé de traitement de signaux en utilisant l'arithmétique à chiffres signés modifiée.
Publication
Application
Priority
GB 8817766 A 19880726
Abstract (en)
A high speed signal processing apparatus for processing long numbers includes a modified signed digit adder 12 having a plurality of adder cells. An input means is provided for inputting binary signals and binary coded modified signed digit format signals to the adder 12 for effecting simultaneous addition and or subtraction of the binary signals and the binary coded modified signed digit format signals. The apparatus includes means for performing modulo multiplication of the inputted signals and a converter 18 for converting the results to normal binary.
IPC 1-7
IPC 8 full level
G06F 7/48 (2006.01); G06F 7/72 (2006.01); H03M 7/12 (2006.01)
CPC (source: EP)
G06F 7/4824 (2013.01); G06F 7/722 (2013.01); H03M 7/12 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0353041 A2 19900131; EP 0353041 A3 19900321; GB 8817766 D0 19890705
DOCDB simple family (application)
EP 89307583 A 19890726; GB 8817766 A 19880726